* [PATCH] ACPI video: ignore BIOS initial backlight value for HP Pavilion g6
@ 2013-05-29 1:27 Ash Willis
0 siblings, 0 replies; only message in thread
From: Ash Willis @ 2013-05-29 1:27 UTC (permalink / raw)
To: linux-acpi; +Cc: acpi_power-video
This patch addresses kernel bug 56661. BIOS reports an incorrect
backlight value, causing the driver to switch off the backlight
completely during startup. This patch ignores the incorrect value from
BIOS.
References: https://bugzilla.kernel.org/show_bug.cgi?id=56661
Signed-off-by: Ash Willis <ashwillis@programmer.net>
---
--- linux.orig/drivers/acpi/video.c 2013-05-24 02:31:26.755501838 +0100
+++ linux/drivers/acpi/video.c 2013-05-24 03:30:34.635596848 +0100
@@ -458,6 +458,14 @@ static struct dmi_system_id video_dmi_ta
},
{
.callback = video_ignore_initial_backlight,
+ .ident = "HP Pavilion g6 Notebook PC",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion g6 Notebook PC"),
+ },
+ },
+ {
+ .callback = video_ignore_initial_backlight,
.ident = "HP 1000 Notebook PC",
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
---
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